Hi Im a new college student at OCC (a college in southern CA), and before going to there I have some money that I'd like to spent on, so far I'm want to buy a PSP, I saw the commercial, its pretty descend. All I know about a PSP is that it can play music, videos, and gaming. But I like to know how long does that thing really last? is there a memory to it?(like a memory ram in computer) and is there a storage to it? if so how much? since I want to upload videos and music. Is there an upgrade to this? beside the skin. And any other things that i should know or be aware of? Much appreciated!